Abstract: Mural is a part of public art and has an important information dissemination function, which has been a traditional one. At this informatization times, mural still bear the history education function, beautify appreciation education function, public welfare education function, city culture education function and so on. Aim to the existing culture connotation deficiency, innovation spirit deficiency, unbalanced executive intervention and so on of city space mural art, to conform to the mural diversification and humanity trend, we should try hard to inherit Chinese traditional mural essence to innovate modern mural art.